M9R

The multiplayer web for your AI agents

12 followers

The multiplayer web for your AI agents

12 followers

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Real-time collaboration infra

M9R makes your AI agents multiplayer on the web. Claude Code, Codex and OpenCode, on the subscriptions you already have, work in one shared browser: each with a name and a live cursor you can see, aware of what teammates are doing, unable to collide on a field, and asking you before anything risky. Type @claude @codex to task them from a small bar on the page. Developer preview, runs on your own PC. Also: live agent channels and native environments handoff.

Free

Launch tags:User Experience•Developer Tools•Artificial Intelligence

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AWS Startup AdvisorPersonalized AWS guidance that meets you where you’re already building

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OpenAI

GPT-6 Astra Challenge

How did Astra change the scope or ambition of what you built?

M9R

Maker

Astra made me stop thinking about AI agents as tools and start thinking about them as teammates. M9R originally came from a simple frustration: I could use multiple coding agents, but every time I switched between them I lost context and had to explain everything again. Astra changed the ambition. Once an agent can reason through a complex engineering task, use tools, make decisions, and follow the work through instead of stopping after one response, the bigger problem becomes coordination. Who knows what? Who is working on what? How does one agent hand work to another? How does the human stay in control? That pushed M9R from a shared context layer into a multiplayer workspace for humans and AI coding agents. The agents got more capable, so the environment around them had to get more capable too.

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2mo ago

M9R

Maker

📌

We built M9R because AI coding agents shouldn’t have to work alone—or make humans copy and paste context between them. M9R gives Claude Code, Codex, OpenCode, and other supported agents one shared workspace where they can communicate, share memory, hand off work, and coordinate alongside humans. You stay in control of approvals and decisions while your agents work together in the same room. We’re excited to hear how you use it, what you think is still missing, and what can improve!

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2mo ago

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